Flora of North America species comparison

ascending or, rarely, erect, usually producing axillary shoots near base, (10–)15–30(–40) cm.

erect, rarely ascending, usually producing axillary shoots below 1st-order inflorescence or at proximal nodes, 50–90(–120) cm.

blades ovate-elliptic, obovate-elliptic, or ovate-lanceolate, (2–)4–12(–15) × 1–5(–6) cm, subcoriaceous, base narrowly to broadly cuneate, margins entire, flat or slightly undulate, apex acute or acuminate.

blades ovate-lanceolate, elliptic-lanceolate, or lanceolate, 10–15 × 3–5.5 cm, usually ca. 2.5–4 times as long as wide, widest in proximal 1/2, thick, often subcoriaceous, base broadly cuneate, rarely almost rounded, margins entire, flat, apex acute or attenuate.

terminal and axillary, usually occupying distal 2/3 of stem/shoot, usually dense, or interrupted in proximal part, broadly paniculate.

terminal and axillary, terminal usually occupying distal 1/5–1/3 of stem, rather dense, normally broadly paniculate.

articulated near middle, filiform or slightly thickened, (8–)10–16 mm, articulation distinct, slightly swollen.

articulated in proximal 1/3, sometimes almost near base, thick, (2–)3–7(–8) mm, usually approximately as long as inner tepals, occasionally slightly longer or shorter, articulation swollen.

5–15 in whorls;

inner tepals distinctly double-reticulately veined, orbiculate or reniform-orbiculate, 13–18(–20) × (20–)23–30 mm, base deeply emarginate or cordate, margins entire, apex rounded, obtuse, rarely subacute, with short, broadly triangular tip;

tubercles absent, occasionally very small.

12–20 in whorls;

inner tepals with broadly triangular, ovate-triangular, or broadly ovate-deltoid, 4.5–6 × 3–4.5(–5) mm, base truncate or indistinctly cordate, margins entire, apex acute;

tubercles (2–)3, equal or subequal, glabrous or minutely rugose.

brown or dark brown, 5–7 × 4–6 mm.

brown or dark reddish brown, 2.5–3.5 × 1.8–2.3 mm.

= 40.

= 20.